Printing-plate holder and registering clamp.



G. F; ROGKSTROH, In. PLATE HOLDBR'AND REGISTERING CLAMP. APPLICATION FILED JUNEZ, 1911.

PRINTING 1,071,349 Patented Aug. 26, 1913.

I i is fl r when en @Fldi fiitl.

CHAR-LES FREDERICK ROCKSTROH, 3B,. OF RICHMOND HILL, NEW YORK, ASSTGNOR T0 E. 'WESEL MANUFACTURING COMPANY. OF BROOKLYN, NEW YQRK, A CORPORA- anon on NEW YORK.

Specification of Letters Patent.

Application filed June 2, 1911. Serial No. 630,842.

PRINTING-PLATE HOLDER AND REGISTERING CLAMP.

Patented Ans. 26,1$13.

it known that I, Cnnnnns F. tool-1- srnori, J11. a citien of the United States,

residing atP-ichmond Hill. in the county of Queens and State of New York, have ini'cnted' certain new and useful Improvements in Printing-Plate Holders and Registering Clamps, of which the following is a specification. v

The invention relates to-means for holding and registering stereotype, electrotype and other printing plates and particularly to that class of clamping device which is employed with a. bed or base provided with plurality of grooves in its upper surtace to which the plate holding and registering hooks or clamps are let down and lifted bodily out of the same. These plate engaging or clampingdevices are often known in the trade as register hooks.

Another feature of the invention resides in the making of the clamping device a unitary structure and locating the actuating parts within the body portion thereof, thereby forming a construction in which all of the actuating parts are protected from dust and ink and whereby they are less liable to become injured by contact with any object when the clamp is removed from the base or bed.

As showing a specific embodiment of the invention reference is made to the draw ings forming a part of the specification in l which Figure 1 shows a bed or base provided with a printing plate secured in place thereupon by register hooks. Fig. 2 shows aside elevation of the register hook. Fig. 3. shows a longitudinal section through thecenterofa register hook taken on the line3--3 of Fig. 5, the hand operatingineans being in operating position thereupon. Fig. dis a transverse sectiona view taken on the line 4& of Fig. looking in the direction of the arrows. Pig. 5 is a plan view of the register hook shown in Fig. Fig. 6 is a longitu- I dine? section or a modified form showing a swiveled plate engaging member or clamping jaw located upon the body portion of the hook. Fig. 7 is a section of a cylindrical base showing another form otre'gis ter hookwhich-znay be nsedin combination only a predetermined depth.

with such a base. All the'figures' of the drawings wlth the exception ofv F 1g. 1 are enlarged views. i

Thereference character 1 indicates the bed 'orbase and is provided in its upper surface with apl'urelity of grooves or chan nels 20f a predetermined depth and width. These grooves preferably have parallel straight smooth side walls WVlllCll permit the ready removal therefrom and insertion of the register. hook hereinafter described which also has parallel sides. The grooves '2 are so arranged that a printing plate can go securedlin any desired position upon the ase. In the bottom of each of the grooves there are equally spaced holes orcavities 3 which may extend entirely through the base vorto These holes are preferably enlar 'ed at the bottom by the counterbore 4- Which is shown in} Fig. 7 The clamping and registering device which as above stated is often termed a f register hook comprises a body or body member 5, a reek-bar or base engaging. hook member 6,'a pinion .7; a worm 8 and a; clampingjaw or plate engaging member .9. I This clamping jaw or plate engaging member is generally provided with an under beveled edge to directly engage the beveled "edge of the .printing'plate so asfto clamp and posi- 'tion the latter upon the base.

The body 5 is provided with a T shaped groove in the lower portion thereof andin this groove there is mounted the rack or base engaging member 6 so that the/base can slide longitudinally relative theretd- This rack or base engaging member 06 is provided with downwardly extending base engaging portions or legs 9' which are enlarged at theirlo-wer ends and which serve as means for holding the registerfhook in place upon the base when located within the openingsor cavital portions 3 of the base.

The body member is counter-bored from oneside and in thisfc unter-bore there is located the'pinionfmeshin'g with the rack. In the form shown in- Figs. 2 and 3 there is also another counter-bore made in the base from the lower side and in this counterbore tlieworm'B is inserted so that it can ineshwi thtthepinion;7 and serve whenacl upsetting the metal as at 12.

platecan from i ing 17 through contour of the register so that there so gaging members carried V In this form the worm is retained in posi- U tion in the-base by means of the pinlO. The counter-bore in which the pinion 7 is'located is closed after the pinion 7 is in place by means of the plate 11 held in the base by a The worm wheel 8-is provided with a square recess portion for the rece tion of an end of the operating tool 14. he method of operating the device' is as follows: First,

5 the register "hook is placed in one (if the slotted portions 2 of the base and the base engaging portions or legs 9 of the base engaging member are passed through'the cavilal portions 3 adjacent/to the plate to 'be 20 clamped or positioned on the base. Now by theworm 8 by means of the merely turning .hand operating tool 14 it will be apparent that the body portion carrying the clamping jaw will be moved along the slot and the position on said base.

In the form-shown in Fig. 6 instead of making the counter-bore forthe worm ex-' tend inwardly from the lower portion of the base it is caused to extend inwardly from the-upper portion and the clamping -jaw or plate engagr'g member'is provided with a. projection l-which is out out at 15 so as to form a collar and this projection 14 enters the upper portion of the counter-bore. This jaw is held in place on'the body by means of pins 16 assing portion '15 with which the collar of the projection engages. I

an inspection of this figure that a construction has been devised which permits the clamping jaw or plate engaging member to assume any angular position. This clamping jaw is also provided with an opencan passto the worm.

' ln' Eig. 7 the bed or base is a portion ofa cylinder which is providedwith' diagonal grooves ,upon its surface and of course the hook must be shaped so as to fit easily within the grooves and permit of the same being readily inserted or removed therefrom. In this form the base engaging portions'or legs 9 are shaped is a hook extending in only one direction. This hook is indicated by 18. In order to prevent the register hooks from dropping from the cylinder there is provided springs 19 that normally force the base enby the rack forward sufliciently to prevent any disengagement between the base and said members. hen

the holes 3 pass entirely through the base 4 sired position. the rack having downwardly 5 which may have collected in the lower POI-x attending hook-shaped holding means.

it will be apparcntthat any ink or dirt that the parts'20 at the the distance between. the holes 3.

body for engaging causing relatlve longitudinal movement bethus be securely held in the desired combination of a body, a plate engaging through the cut out- It will thus be apparent which the operating tool 14 tion of the grooves can pass or be forced through said holes and will thus be less liable to clog the grooves.

Itwill be observed that the rack portion I of the base engaging member 6 does-.not extend the full length of said member and extremities thereof can serve as stop means said parts 20 engage the pinionl'. It will also be observed that the range of movement of the rack member 6 is greater than It is obvious that various forms and modiwhen either one of fioations may be made without departing from the spirit and scope of the invention.

I claim as my invention: 1. In a device of the class described, the combinationof a body carrying a plate engaging member 'at the top portion thereof. a hook member which also'is carried by the the base and means for tween the plate engaging member and the hook member.

2. In a .device of the cl'ass .described, the

member, a rack mounted in the body and means for causing sliding movement be tween therack and the body; the member. rack and means all carried by the body, the rack having a hook shaped holding means extending downwardly and below the body.

3. The combination of a base having holes or cavital portions therein for the reception of hook-shaped holding means and a register hook. said register hook comprising a body carrying a plate-clamping or engaging member and having secured therein a base engaging member having hook-shaped means which enter said cavital portions, and

means for causing relative longitudinal movement between the base engaging member and body and. for holding them in proper position relative to each other.

4:. The combination of a slotted base having'spaced holes or cavities along the lower portion of the slots and a register hookcomprising a base, a plate engaging member, a rack, and gear means comprising a worm foreansing relative movement between the base and rack: said rack having a base emgaging portion for entering the holes and holding the register hook on the base. the the body. rack and gear means can all be lifted bodily out of the slot.

5. The combination with a body having at its upper portion a plate-engaging inember, of a rack secured in the lower portion of the body and gearing for moving the body relative totlle rack, said gearing comprising a pinion mesl'iing with the rack and a vertically extending worm for operating the punch and for holding the gear in an de *relative to the tions which enter the holes register hook in position on thebase.

6. In a register hook for use with bases for supporting printers plates, the combination with a bodymember having parallel sides, said body member carrying a plate engaging member at the top portion thereof, of a rack held by and between the sides and gear means for moving the body member member or members constructed so as to enage a base and so as to hold the register 08k in position thereupon, said rack also having secured thereto a spring which maintains said rack in holding position.

7. The combination ofa base and a re ister hook having a body, a plat-e'engagmg member and a'base engaging member havin a portion extending downwardly beneath the body, said downwardly extending portion having at one side thereof a hook and atthe other side a compression spring for main-.v

taining the hook in engaging position upon the base, the body carrying the plate-engaging member and-being horizontally adjustable along the base-engaging member.

8. The combination of a base having holes register hook comprisinga therein and a plate-engaging aw and a horizontally extending member along which thejaw is adjustable, said member havingdownwardly extending hook-shaped base engaging porand hold the 9. A device for securing printing plates to a base, said device comprising in combi: nation a body having a plate engaging jaw and a rack along which the body slides, the rack being provided with hook means which engage the base for holding the device in place on the base and the body being see cured to the rack so as to permit movement along the rack.

10. In a register hook, the combination with a body carrying a plate engaging jaw at the top portion thereof, a longitudmally extending rack to which the body is. secured and along which the body can slide, means for causing the body to move along the rack and means connected with the hold the rack in place against a force tending to lift the rack.

a Copies of this patent may be obtained for five cents each,' by Washington, D. 0.

"ing the register hook in rack; said rack having a thereto.

a body memb rack so as to 11. The combination of a base having spaced holes and a register hook having a body'portion carrying a member relative to which the body can slide, said member being provided adjacentthe hook-shaped base engaging means for holdposition on the base, the range of relative movement between the body portion and member geing greater than the distance between the holes.

12. A register hook comprising a body portion having a plate-engaging jaw, a rack secured to the body portion, and means for causing the body portion to move along the rack, said rack being provided with hookshaped base-engaging portions.v I

13. A device for securing printers plates ends thereof with to a base comprising in combination with a body having at its upper portion a plate-engaging member, of a ,rack secured in the lower portion ofthe body and gearing for moving the body relative to the rack, said rack having downwardly extending base en gaging means, and a spring secured to the rack for maintaining it in position on the base. 1

14. A printers' plate holding device comprising a body having at itsupper portion a plate engaging member, a rack secured to the body and means for relative to the rack, said rack having a base moving the body engaging member and a spring secured 15. In a register hook, the combination of er carrying aplate engaging jaw, a longitudinally extending member and means for moving the body member along the same, the longitudinall extending member being provided with a base engaging memberand also-having secured thereto a movable member for maintaining the longit'udinallyextending member in position. on

the base. g

This specification signed and witnessed this 17th day ofMay, D. 1911.

CHARLES FREDERICK ROCKSTROH, n.

Signed in the presence of- CGRANN, I EDWIN A. PACKARD.

addressing the Commissioner of Patents, 

